231 lines
7.2 KiB
Plaintext
231 lines
7.2 KiB
Plaintext
# This bbclass provides basic functionality for user/group settings.
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# This bbclass is intended to be inherited by useradd.bbclass and
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# extrausers.bbclass.
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# The following functions basically have similar logic.
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# *) Perform necessary checks before invoking the actual command
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# *) Invoke the actual command, make retries if necessary
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# *) Error out if an error occurs.
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# Note that before invoking these functions, make sure the global variable
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# PSEUDO is set up correctly.
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perform_groupadd () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing groupadd with [$opts] and $retries times of retry"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupadd $opts || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" = "x"; then
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bbwarn "groupadd command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running groupadd command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "group $groupname already exists, not re-creating it"
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fi
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}
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perform_useradd () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing useradd with [$opts] and $retries times of retry"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO useradd $opts || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" = "x"; then
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bbwarn "useradd command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running useradd command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "user $username already exists, not re-creating it"
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fi
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}
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perform_groupmems () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing groupmems with [$opts] and $retries times of retry"
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local groupname=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-g" || $i == "--group") print $(i+1) }'`
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local username=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-a" || $i == "--add") print $(i+1) }'`
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bbnote "Running groupmems command with group $groupname and user $username"
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# groupmems fails if /etc/gshadow does not exist
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local gshadow=""
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if [ -f $rootdir${sysconfdir}/gshadow ]; then
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gshadow="yes"
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else
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gshadow="no"
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touch $rootdir${sysconfdir}/gshadow
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fi
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local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
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if test "x$mem_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupmems $opts || true
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mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
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if test "x$mem_exists" = "x"; then
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bbwarn "groupmems command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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if test "x$gshadow" = "xno"; then
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rm -f $rootdir${sysconfdir}/gshadow
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rm -f $rootdir${sysconfdir}/gshadow-
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fi
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bbfatal "Tried running groupmems command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "group $groupname already contains $username, not re-adding it"
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fi
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if test "x$gshadow" = "xno"; then
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rm -f $rootdir${sysconfdir}/gshadow
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rm -f $rootdir${sysconfdir}/gshadow-
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fi
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}
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perform_groupdel () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing groupdel with [$opts] and $retries times of retry"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupdel $opts || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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bbwarn "groupdel command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running groupdel command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "group $groupname doesn't exist, not removing it"
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fi
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}
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perform_userdel () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing userdel with [$opts] and $retries times of retry"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO userdel $opts || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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bbwarn "userdel command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running userdel command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "user $username doesn't exist, not removing it"
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fi
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}
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perform_groupmod () {
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# Other than the return value of groupmod, there's no simple way to judge whether the command
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# succeeds, so we disable -e option temporarily
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set +e
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing groupmod with [$opts] and $retries times of retry"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupmod $opts
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if test $? != 0; then
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bbwarn "groupmod command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running groupmod command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "group $groupname doesn't exist, unable to modify it"
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fi
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set -e
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}
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perform_usermod () {
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# Same reason with groupmod, temporarily disable -e option
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set +e
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "Performing usermod with [$opts] and $retries times of retry"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO usermod $opts
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if test $? != 0; then
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bbwarn "usermod command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "Tried running usermod command $retries times without scucess, giving up"
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fi
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sleep $count
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done
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else
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bbwarn "user $username doesn't exist, unable to modify it"
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fi
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set -e
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}
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